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Tag Archives: wildlife

Unfortunately for Cosette, her natural brown coloring does nothing to camouflage her here.

Wild rabbits are well concealed in the brush by their brown coloring. But one thing gives them away – that flash of white from their tails as they’re bounding away. So why did rabbits evolve to have a white tail, and not a brown one? (Or a green one?)

Evolutionary biologist Dirk Semmann of the University of Göttingen in Germany thinks he knows the answer. Semmann believes the obvious, white coloring actually distracts and confuses predators as the rabbit darts back and forth. A predator focuses on the white tail during the chase, and then when the rabbit turns, the white disappears. It takes a second for the predator to regain focus on the rabbit after every sharp turn… and these seconds can add up to enough time for the rabbit to escape.

According to Semmann, “The idea first appeared when I was running,” says Semmann. “I met this rabbit; it was always running and turning at some point. That got me thinking about the problem.”

To test his theory, Semmann used a video game on a group of people which involved either a flashing, bright circle (the white tail) or a non-flashing circle that blended with the background. The presence of the flashing circle reduced the participants’ ability to “catch” it.

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My House Rabbit is an educational website that promotes keeping pet rabbits inside the home. The site was founded by veteran rabbit owners Abi Cushman and P.A. Smith of New London, CT, who currently share their home with two mischievous agouti rabbits named Coco and Cosette.